BWD4805

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DC DC converters are a family of electrical systems that convert electrical energy from a DC source into a different DC voltage, typically at a higher or lower level. This type of conversion is useful in applications such as electric vehicles, communications systems, industrial power supplies, and power distribution applications. A DC DC converter typically operates by modulating a constant voltage source, usually an AC source, with a pulse width modulated (PWM) signal to produce a different DC voltage.

The BWD4805 is a DC DC converter with a range of useful features and applications. It is a pulse width modulated (PWM) DC-DC buck converter with an adjustable output voltage range of 1.2V to 4.2V. The converter features an extremely low quiescent current draw and a high efficiency of up to 90%. It is designed to drive up to 1.5A of load current with a high powermode up to 3A.

The BWD4805 is designed to use in applications such as battery powered systems, automotive, consumer, and industrial circuits. It can also be used in applications requiring low power supplies for microprocessors, microcontrollers, and digital signal processors. The converter is designed to minimize power dissipation in the switched-mode power supply without compromising the performance and reliability required in demanding applications.

The working principle behind the BWD4805 is relatively simple. It is based on a buck converter, which means that it operates on the principle of converting a higher input voltage into a lower output voltage, switching the DC voltage in a pulse-width-modulated (PWM) manner. The converter has two outputs: a regulated output voltage and an unregulated output voltage. The regulated output voltage is derived from the voltage input and is regulated by the built-in voltage regulator, while the unregulated output voltage is derived from the voltage input and is affected by components such as capacitors and inductors in the circuit. The BWD4805 also features an adjustable dead time, which ensures that both the regulated and unregulated outputs have identical voltages during the off time of the converter.

The BWD4805 is a feature-rich, efficient, and reliable DC DC converter, making it an excellent choice for a variety of applications. Its low quiescent current draw, high power mode support, and adjustable dead time provide increased flexibility and improved performance in demanding applications. Its efficient power conversion and robust design help to ensure a reliable and cost-effective solution for applications that require a low voltage, high power supply.

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